/*
 * Copyright (c) 2019 The StreamX Project
 * <p>
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements. See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership. The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License. You may obtain a copy of the License at
 * <p>
 * http://www.apache.org/licenses/LICENSE-2.0
 * <p>
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied. See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package com.streamxhub.streamx.plugin.profiling.util;

import java.util.List;

/** @author benjobs */
public class ClassAndMethodFilter {
  private static final String METHOD_NAME_WILDCARD = "*";

  private ClassAndMethod[] classAndMethods = new ClassAndMethod[0];

  public ClassAndMethodFilter(List<ClassAndMethod> classMethodNames) {
    if (classMethodNames != null) {
      this.classAndMethods = new ClassAndMethod[classMethodNames.size()];
      for (int i = 0; i < classMethodNames.size(); i++) {
        this.classAndMethods[i] = classMethodNames.get(i);
      }
    }
  }

  public boolean isEmpty() {
    return classAndMethods.length == 0;
  }

  public boolean matchClass(String className) {
    for (ClassAndMethod classAndMethod : classAndMethods) {
      if (className.startsWith(classAndMethod.getClassName())) {
        return true;
      }
    }
    return false;
  }

  public boolean matchMethod(String className, String methodName) {
    for (ClassAndMethod classAndMethod : classAndMethods) {
      if (className.startsWith(classAndMethod.getClassName())) {
        if (METHOD_NAME_WILDCARD.equals(classAndMethod.getMethodName())
            || methodName.equals(classAndMethod.getMethodName())) {
          return true;
        }
      }
    }
    return false;
  }
}
